Clip for fastening roof-sheets.



Wr PFEFBR.

CLIP POR FA STENING ROOF SHEETS APPLICATION FILED OCT.12 1913` PatentedMay 20, 1913 l UMTED STATES PATENTQFFICE.

WILLIAM PFEIFER, OF JERSEY CITY, NEW JERSEY.

manently secured.

Specification of Letters Patent.

CLIP FOR FASTENING RO0F-SHEETS.

Patented May 2o, 1913.

Application 1ed October 12, 1912. Serial No. 725,507.

`ments in Clips for Fastening. Roof-Sheets,

of which the following is a specification.

This invention has reference to improvements in clips for fastening roofsheets.

f It pertains particularly to improved clips used in roof constructionsin which the roof sheet is fastened by means of rivets that pass throughthe clips. The rivets finally are forced through the roof sheet andflattened whereby the said sheetis per- In order to render it possibleto flatten the rivet that passes through the clip the rivet head must besupported from below to offer suflicient resistance. This isaccomplisledibyholding a dolly against the rivet hed'iwhile the rivet isflattened. To effect that.. an employee is required to press thedolly/.gainst the rivet head from underneath the' roof while anotheremployee flattens the rivet. Itl is evident that this ,method is asource of loss `in wages and timeas practised with clips heretoforeemployed. It further happened quite often with this method thatholeswere made inthe roof sheet in wrong locations which holes had to beclosed bysoldering or the damaged sheets had to be cut up for other usewhich resultedin a loss of material. Such clips were then hammeredagainst the lowerj'surface ofthe upper .lateral portion of the purlinwhich permitted of slight vibrations of the nished roof.

The presentninvention has for its purpose to produce improved clips forfastening "roof-sheets or roof coverings by means of p portion of aroof. Fig. 2 illustrates in side the'roof sheet until he finds therivet.

elevation an improved clip applied to a purlin with the roof sheeting'resting on the rivet. 'Figa 3 is a vfront elevation of Fig. 2 showingthe roof sheet fastened and the'rivet attened; and F ig. 4 is aperspective View of the improved clip.

Similar characters of reference denote like parts in all the figures.

In the drawing in Fig. 1 a represents a principal rafter or roof trusswhichsupports the purlins Z); 'The clips are applied to the tophorizontal portion of the purlins as shown-in Figs. 2 and 3. The purlin'b illustrated in Fig. 2 is of about -natural size and strong enoughfora roof to Withstand storms. The clip c shown in Fig. 4 also is ofabout natural size and ofthe shape in which itis manufactured. Theimproved clip is. made of a metal bai' and consists of a horizontal topportion c1, a parallel middle portion c2 which is somewhat longer thanthe topportion, and a-bottom portion c3 bent at an angle as shown. Thetopportion c1 has a central opening through which passes a rivet d whosehead d1 is located between the middle and to-p portions of the clip andfits snugly between them. Thus the rivet forms a permanent part of theimproved clip. The rivet head is of a substantial height which appearsto facilitate the flattening of the rivet.

The clip' is applied to the horizontal top i portion b1 of the purlin Z)with its lower portion c3 hanging down as shown inY dotted lines in Fig.2. lVhen the required number of clips have been placed on the purlinsthe roof sheet e is placed thereon which is usually corrugated as shownin Fig. 3. It is easily understood from Fig. 2 that the rivet head issubstantially supported from below by the clip portion c2, thehorizontal purlin portion b1 and thereby by the entire purlin and theroof truss a. For the purposeA of fastening the roof sheet andflattening the rivet one employee is sufficient who feels with hishammer along the top surfaceof Now the roofV sheet is hammered downwhereby the rivet pierces the same. When the rivet is flattened itassumes the shape shown in Fig. 3 in which the flattened portion isdesignated by the reference character d2. In the described manner allthe rivets are han1- mered down Without any support from bielow untilthe roof is finished. When tde rivet has been flattened the slantingportion tion, and Ineens permanently Secured beA Y tween the^top andmidd surface of the VVhorizontal portion b1, of the -widthsbecause it is'immaterial whether. the .clip extends 'a little more or lessoveij thetop constructions other. ASizes of llo'course'be manufactured. A

ing, a middle portion'paraHel to the top4 l extendingib c ofthe clip. ishammered vagainst the lower purlin b, as vshown fin Fig. 2. `It iseasily seen from this figure that the fone size clip-. maybe usedonpurlinsof various sizes and portionj-b1 ofl the'pu'rlin b.'Forfspecial'roofvcli-PS- 'may' 0f I claimv as my invention- I i Y 1, Aclip-for fasten-ing roof sheet s"o mprsing atop-portionhav'mgla--central open.-

nllic'. for- I uy. longer im' el to, thetop portion; anjin`A ned-bottomort1n, 'nda. rivet' itsLhea'd betweenportion, an integralparallelA bottom portion,

thejop'ening lng-fthe'vtop portionend extend! uingfheyond the same,said"i;'zidlfle.andv botrivet permanently' secured withf its,` heald'be`l ltween A.the top end middle vf through the openingjin the and ariyet permanently 'secured with its head.. between the top "endmi'ddleportions tomportions of each clip surrounding the ftop. portions oapu'rlin, and' aj 'roof sheet` x' b'i'natio'n; fletfinetllcclipseompo'sedfegch of v a' 'top-"portion with central opening, an4"integral middleportion paraHel-tptletop potionfari integral :bottomportion, and la,

60 portions. -pe's'sing top portlon and I extending beyond the-seme. j

A ISigned at New' YQk; N. Rich-is '11th, eey- WILLIAMPFEIFEnf@ iWit-nesss* MARIE H: LEHR,

. l/` EMMA: A.'MOCARR1CK;

